Transmission mechanism for automobiles.



L'C. FREEMAN. TRANSMISSION MECHANISM FQR AUTOMOBILES.

Patented Apr..17, 19I7 I 4 SHEETS-SHEET I.

APPLICATION FILED Iil. 19. 1913- .Ill l l 1 I ll r} llllllllllllll IBWEIIIIIIIIIIIIILMFPIKLI..II I.

wlmaases mv'an'rox I BY v Q M I HTTORHET I FREEMAN TRANSIHSSIBN MECHANISM FOR AUTOMOBHES.

mm Apr. 17, 1917.

APPLICATION HLED MAR. '19, 1913.

4 SHEETS-SHEET 2- I wnfisssas APPLICATION FILED "AK. 19' I913- Patented Apr. 17,1917.

4 SHEETS-SHEET 3- m ATTORNEY L. C. FREEMAN.

. TRANSMISSION MECHANISM FOR'AUTOMOBILES.

' APPLICATION FILED MAR.19, I913- Patented Apr. 17, 19171 Q 4 SHEETSSHEET 4.

I S INVENTOR WITHESSfis I QM NIW m HTTORNEY 7' LOWELLTC. FREEMAN, OF DETROIT, MICHIGAN.

Specification of Letters Patent.

TRANSMISSION MECHANISM FOR AUTOMOBILES.

\ Patented Apr. 1'7, 1917.

Application filed March 19, 1918. Serial No. 755,379.

. To all whom it may concern:

Be it known that I, LOWELL C. FREEMAN,

citizen of the United States, residing at %etroit, county of \Vayne, State of Mlchigan, have invented a-certain new and useful Improvement in Transmission Mechanism for Automobiles, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the 'accompanying drawings, which form a part of this specification.

My invention relates to transmission shaft. and transmission gear, and an appa-;

ratus embodying my invention secured to said chassis.

Fig. 2, is an elevation looking from the part of Fig. 1 which is toward the top of the sheet.

Fig. 3, is a side elevation of the same partly in section, the side pieces of the chassis toward the observer being removed.

Fig. 4, is a detail sectional view showing the parts separated.

Fig. 5, is a side elevation of a part of an automobile embodying my invention, the counter shaft and attached mechanism being removed.

Fig. 6, is a viewsimilar to Fig. 4, except that, theparts shown in Fig. 4 are in this figure not assembled. The section in Figs.

' 4 and 6 is taken on the line D--D Fig. 1. I

Fig. 7, is an end elevation partly in section showing the counter shaft as a whole removed from the chassis. This figure is substantially an elevation of the part shown in Fig. 5 looking from the right of the latter, the wheels and springs being removed.

Fig. 8, is a view similar to Fig. 7 except that the parts are shown assembled. v i

Fig. 9, (Sheet 1 is a sectionalelevation of the bearin brac et looking from the side of the vehic e, the brake drum being removed.

a, a are the side pieces of an automobile frame. 6 is a cross'piece. 0, c are lugs extending from the cross pieces 6, b between the side'pieces 0., a. d, (I are securing plates, one of which is riveted to the outside of each of the side pieces 1 a, a. e, e are bearing brackets adapted to be secured to the plates 0?, d as hereinafter described.

j, is a casing for equalizing gear, and i, i are the usualtubular extensions of said casing. The extensions 6, z bear in the brackets e, e so as to be capable of turning therein. 2, z is the counter shaft, which is adapted to turn in bearings supported by the extensions i, 71. w m are sprocket gear Wheels on the ends 0 the counter shaft .2, z. The attaching plates d, d are forked, the space between the forks opening downward, and are countersunk in cylindrical form concentric with the upper part of the space between the forks, as indicated at g. The bearing brack ets e, e are provided with cylindrical projections 72,, h adapted to fit into the countersunk portions 9, g of the attaching plates cl, d. The extensions 6, z from the casing 7' pass between the forks of the attaching plates d, d and fit into the upper portion of the opening between said forks. cal projections 72., h are then moved inward and fit into the countersunk portions 9, g of the attaching plates d, d and the brackets are secured to said attaching plates by bolts extending through the flanges of the same.

1 f 'v, v are two arms, or branches, extending from the bearlng brackets e, e. 4 (Fig. 9) is a split ring having a socket 6 fitting over a lug 5 on the end of one of the branches or arms a, 'v. 'w, is a cam shaft adapted to be operated by an arm 3 by which the cam 2 is rotated to expand the ring 4 to set the brake.

y, y are drums secured to the counter shaft 2, a and extending over the split ring or brake shoes 4-4.

k, is the casing for the change-speed gearing. This casingis provided with a tubular extension m which is adapted to be bolted to an extending part of the casing j. n is a tubular extension coaxial with the extension m and upon the opposite side of the casing k. -0 is an annulus adapted to embrace the expanded end of the tubular extension at. The annulus 0 is provided with opposite laterally extending lugs p, p which are secured by bolts to the lugs c, c.

g, is the power shaft leading in to the transmission gearing and adapted to be coupled by a un versal joint to the motor,

The cylindri- 5 and 7.

(not shown). By referrin to Fig-3 it will be seen that there is provi ed an additional annulus. 8 which is bolted to the expanded end a of the extension at, which may be machined and finished at its periphery to fit to the machined inner wall of the annulus 0. The annulus 8 may be provided with oil grooves and'afiord a bearing for the shaft 9, or support for a bearing therefor.

The ring 8 being separable may be easily machined and accurately shape By removing the bolts securing the annulus o to the lugs c, a the change-speed gearing may be turned upward, as shown in Fig. 3, the tubular extension 13 turning in their hearings in the bracket 6, e thus the various parts are rendered more easily accessible. The equalizing gear casing y and its extensions 41, iwith the bearing bracket 6, e may be readily removed by removing the securing bolts in said brackets and dropping the casing and attached parts down, as shown in Figs. 4,

What I claim is 1. In an automobile, the combination of a casing for the equalizmg gear, laterally extending parts from said casing adapted to turn in bearings on said frame, a changespeed gear casing secured to said equalizing gear casing and extending at right angles thereto, an annulus surrounding said changethe equalizing gear casing so as to form a loose joint therewith, and means for detachably securing said annulus to the frame.

2. In an automobile, the combination of a casing for the equalizing gear, laterally extending parts from said casing adapted to turn in bearings on said frame, a changespeed gear casing secured to said equalizing gear casing and extending at right angles thereto an annulus surrounding a portion of said change-speed gear caslng remote from the equalizing gear casing, a cross piece forming part of said frame, lugs extending from said cross piece, lugs extend ing from said annulus and adapted to be femovably secured upon the first mentioned ugs.

an automobile, a frame, attaching piecessecured to said frame, said attaching pieces being countersunk in their outer surfaces, bearing bracketshaving projections adapted to fit into said countersunk portions of the attaching plates, bearings in said brackets, a counter shaft bearing in said equalizing'gear casing, and means for detachably securing said brackets to the sides of said attaching plates.

5. In an automobile, the combination of a frame, a casing for the equalizing gear, laterally extending parts from said casing adapted to turn in bearings on said frame, a change-speed gear casing secured to said equalizing gear casing and extending at right angles thereto and means for detachably securing said gear casing to the frame .so as to permit relative angular motion of said change gear casing, said bearings being removable in a direction approximately at right angles to said frame. speed gear casing at a point remote from 6. In an automobile, a frame, attaching pieces secured to said frame, said attaching pieces being countersunk at their outer surfaces, bearing brackets having projections adapted to fit into said countersunk portions of the attaching plates, bearings in said brackets, a counter shaft resting in said bearings and means for securing said brackets to said attachin pieces, said attaching pieces being provi ed with forks opening downward and being countersunk around the upper end of the openings of said forks.

In testimony whereof I sign this specification in the presence of two witnesses.

LOWELL G. FREEMAN.

Witnesses:

VIRGINIA O. SPRATT, Emo'rr J. STODDARD. 

